Speaker: Yaxian Mao (CCNU )

Date: Thursday, Apil. 18, 2019, 10:30 AM (Beijing Time)

Abstract: The experimental heavy-ion program aims to explore the phases of nuclear matter, the structure of nucleus and the nucleons, and the properties of Quark Gluon Plasma (QGP). The study of QGP in laboratories will allow us to gain a more profound understanding of quantum chromodynamics (QCD), the theory of strong interaction. Extending the study of QCD to dynamical and complex systems will let us learn how macroscopic properties of matter emerge from the fundamental microscopic laws of particle physics. Jet quenching is a phenomenon that has been observed for all hadron species at high pT as a pronounced suppression of their production in heavy-ion collisions relative to pp collisions. These high pT hadrons originate from hard scattered partons produced in the initial stage of collisions and lose energy while traversing the medium. The partonic shower generated by parton fragmentation following its hard scattering process is measured as a collimated jet of hadrons. Due to the jet quenching, both the jet energy and its composition can be modified by the medium. In this talk, I will present results of jet measurements at the LHC based on my research work, and perspective for future direction will be also briefly discussed.